Abstract
Low energy γ-spectra from neutron capture in natural germanium have been studied with several high resolution Ge(Li)-detectors. Measurements have been made with two different target configurations. In the first measurement a normal Ge-target was irradiated with neutrons; no neutrons were allowed to enter the Ge(Li)-detector. In the second measurement the Ge(Li)-detector was used simultaneously as target and as γ- ande −-detector. By combination of the results convertion coefficients of several transitions in73Ge have been determined.
Several unknown low energy transitions in Ge isotopes have been found with the aid of the second method.
The level schemes of71Ge,73Ge,74Ge and75Ge have been revised by means of coincidence measurements with a Ge(Li)-Ge(Li)-coincidence system of high efficiency and resolution.
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Herrn Dr. Vonach möchten wir für sein Interesse und seine wertvollen Anregungen danken. Für den Bau des Planardetektors danken wir Herrn J. Kemmer und Fräulein H. Hirsch sowie der Zentralwerkstatt des Physik-Departments. Herrn D. v. Harrach sei gedankt für die Überlassung von Rechenprogrammen für die Auswertung der Koinzidenzmessung und für wertvolle Diskussionen, dem Leibniz-Rechenzentrum der Bayr. Akademie der Wissenschaften für die Gewährung von Rechenzeit. Besonders danken wir Frau K. Demmel und Fräulein I. Freiberg für die Niederschrift der Arbeit und das Anfertigen der Zeichnungen.
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Weishaupt, R., Rabenstein, D. Beiträge zu den Niveauschemata der Ge-Isotope71Ge,73Ge,74Ge und75Ge aus der Untersuchung von (n, γ)-Reaktionen in natürlichem Germanium. Z. Physik 251, 105–134 (1972). https://doi.org/10.1007/BF01380454
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DOI: https://doi.org/10.1007/BF01380454